Assembled engine piston



Nov; 19, 1940. v L E 2,221,966

ASSEMBLED ENGINE PISTON Filed June 6, 1939 I Z'Zden A TTORNEYS.

W 7 INVENTOR.

Patented Nov. 19, 1940 UNITED STATES.

ASSEMBLED ENGINE PISTON v Frederick Elder, Valley City, Ill.

Application June 6, 1939, Serial No. 277,698

2 Claims.

This invention aims to provide a novel piston for internal combustion engines and the like, so constructed that it may be taken down readily, to permit the cleaning of the spacers that are i interposed between the piston rings, to permit.

It is within the province of the disclosure to improve generally and to enhance the utilityof devices of that type to which the present invention appertains.

With the. above and other objects in view,

which will appear as the description proceeds, theinvention resides inthe combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in-the precise embodiment of the invention herein disclosed,

may be made within the scope 01'. what is claimedwithout departing from the spiritf oi the invention. 1.

In the accompanying drawing:

constructed in accordance with the invention;

Figure 2 is a transverse section on thellin'e 2-2 ofF'igurel.

ing the body and the sleeve telescoped, to shorten the piston for storage and shipment. I

The piston forming the subject matter of this. I

application comprises an inverted cup-shaped body I having an outstanding flange 2 defining a shoulder 3, a sleeve 4 being disposed about the body, the inner end of the sleevedeflning a shoulder 5, the body and sleeve having registering 40 openings 6, a connector, to which the piston rod is pivoted, being engaged in the openings, to hold the body and sleeve assembled.

The connector, which joins the piston rod to the piston, may be of any desired form. In the form shown in Figure 1, the body I and sleeve 4 are held together by bushings I, located in the openings 6, a wrist pin 8 having its end portions received in the openings. Without a specific showing in the drawing, it will be understood that the bushings I may be omitted, if the wrist pin 8 is of proper diameter, the term connector being used to cover either that form or the one delineated in Figure 1.

The shoulder 2 is recessed to receive a packa: shorten the piston for storage and shipment. The packing means which-is interposed between Figure 1 shows in longitudinal section, a device v {piston rod connector hold thebody l" and the v Fig. 3 is a fragmental transverse. section, show;

ing ring 9, which is L-shaped in cross section.. The shoulder 5 is recessed to receive va packing 'ring III which, also, is L-shaped in cross section.

Between the rings 9, and III are disposed any desired number 'of annular packing rings ll. Spacers 12, which are L-shaped in cross section, are interposed between the packing rings and engage the shoulders 3 and 5, the spacers having contact with each other, longitudinally of the piston, as shown in Figure l. e 10 ..The construction is such that the piston may be taken down-readily, by removing. the connector ii-l, .an'deither the packing rings or the-spacers may berenewed, and the spacers nay be cleaned and put back .if nece'ssaryi The cleaning out .of carbon is facilitated, and the stick-ing together of parts-is'avoided. The'fconstruction; isiJ-such that the entire device'may be taken apart and put together readily, without damage to'any of its constituent members.- i

The external surface of'the body i and the internal surface 1 oi the sleeve 4 are smooth, whereby the body and the sleeve can'- be-telescoped until the shoulders 3 and 5 contact, to

the shoulders 3 and 5 serves to aline-the openings 6 of thebody l and the sleeve 4, to receive 7 the piston rod connector. 'The bushings I ofg.;the

sleeve 4 together, prior to wrist pin 8. Whatisclaimedis: 1

'1. A piston for internal combustion engines and the like, comprising an inverted cup-shaped body having an outstanding shoulder, a sleeve, about the body, the inner end of the sleeve defining a shoulder, the external surface of the body and the internal'surface of the sleeve being smooth, whereby the body and the sleeve can be telescoped until the shoulders contact, to shorten the piston for storage and shipment, the body and the sleeve having, transverse openings, packing means located between'the shoulders and alining the openings of the body and the sleeve, and a piston rod connector engaged in the openings to hold the body and the sleeve assembled. 2. The piston of claim 1, wherein the connector comprises bushings in the openings, and a wrist pin in the bushings, the bushings holding the body and the sleeve together, prior to the insertion of the wrist pin.

FREDERICK ELDER.

the insertion of the I 

